Huge inelastic current at low temperature in graphene nanoribbons.

摘要: The nonequilibrium Green's function and the generalized lowest-order expansion method with consideration of electron-phonon interactions (EPIs) are used to investigate spin-dependent electronic transport properties ferromagnetic zigzag graphene nanoribbons. Results show that EPIs will lead a 4-5 orders magnitude increase current in some bias regions when spin polarizations two electrodes antiparallel. This results vanishing dual filtration effect narrowing effective region giant magnetoresistance. increases mainly from first Born scattering process, can be described by Fermi's golden rule, may result breaking structural symmetry introduction phonons.